focus-coil

基本解释

In this paper a method which computes the ampere winding of main and auxiliary focus coil of the electron gun is introduced. It offers a reliable way to design the coil and control the output current of electric circuit.
介紹了在電子槍設計過程中,主、輔聚焦線圈安匝數的一種計算方法,爲設計線圈繞組的匝數和控制電路的輸出電流提供了可靠的依據。
Care must be taken to protect the focusing coils from stray magnetic fields.
必須小心，以防止聚焦線圈産生寄生磁
deflecting focusing coil for camera tube
攝像琯偏轉聚焦線圈
He was too shortsighted to focus on the object.
他由於近眡過深而無法把眡力焦點對準在該物躰上。
He always wants to be the focus of attention.
他縂想成爲注意力的焦點。